Abstract
Friction and adhesion experiments have been carried out between two large crystals of copper of controlled orientation from the surface of which all oxide had been removed. One crystal was in the form of a sphere and the other was a sphere with two flat surfaces cut parallel to particular planes. The coefficient of dry static friction between two (100) faces was greater than one hundred and between (111) faces was approximately twenty-five. The greater value for the (100) faces was attributed to the greater digging-in and the increased area of contact produced by slip as displacement occurred. Similar cohesion experiments showed that bonds were formed of the same strength as the parent metals. The rupture of the bond formed between crystals and the slip of the metal adjacent to the bond were studied.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
